/// <summary>
///
/// </summary>
/// <param name="instance"></param>
/// <returns></returns>
public string Serialize(object instance)
{
if (instance == null)
throw new ArgumentNullException("instance");
var writer = new XmlWriter { Owner = this };
var type = instance.GetType();
var doc = new XDocument();
XElement root = null;
if (Types.ByteArray == type)
root = writer.WriteByteArray(instance as byte[]);
else if (type.IsCollectionTypeExcludeStringAndDictionaryType())
root = writer.WriteList(instance as IEnumerable);
else //TODO:字典，泛型对象需要检查
{
var name = type.Name;
root = new XElement(name.AsNamespaced(Namespace));
writer.Write(root, instance);
}
if (RootElement.HasValue())
doc.Add(new XElement(RootElement.AsNamespaced(Namespace), root));
else
doc.Add(root);
return doc.ToString();
}